Summary of Contents for Strasshofer MHCC
- Page 1 Heating Controller MHCC Weather-compensated heating circuit controller Installation and operating instructions Read carefully before installation, commissioning and operation...
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Page 2: Table Of Contents
Discharge Protection Explanation of Symbols Changes to the Unit 7. Special Functions Warranty and Liability Sensor Calibration Disposal and Pollutants Commissioning Factory Settings Description MHCC Mixer Specifications Turn Time About the Controller Pause Factor Scope of Supply Increase Hydraulic Variants... -
Page 3: Safety Instructions
Safety Instructions EU-Conformity By affixing the CE mark to the unit the manufacturer declares that theMHCC conforms to the following relevant safety regulations: EU low voltage directive 2014/35/EU EU electromagnetic compatibility directive 2014/30/EU conforms. Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file by the manufacturer. -
Page 4: Changes To The Unit
Changes to the Unit Changes, additions to or conversion of the unit are not permitted without written permission from the manufacturer. It is likewise forbidden to install additional components that have not been tested together with the unit. If it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the housing, turn the Unit off immediately. -
Page 5: Description Mhcc
Description MHCC Specifications Model MHCC Weather-compensated heating circuit controller Temperature controller class Energy efficiency ErP Class VIII / When operating at min. 3 ° CALEONs or RC20 a energy efficiency of 5% is achieved Standby loss 0,5 W Request type heater... -
Page 6: About The Controller
About the Controller The weather-compensated heating circuit controller for heating systems MHCC facilitates efficient use and function control of your Heat- ing system possible while its handling is intuitive. After every input step the suitable functions are matched to the keys and explained in a text above. -
Page 7: Wall Installation
Wall Installation 1. Unscrew cover screw completely. 2. Carefully pull upper part of housing from lower part. During the removal, the brackets are released as well. 3. Set upper part of housing aside. Do not touch the electronics. 4. Hold the lower part of the housing in the selected position and mark the 3 mounting holes. -
Page 8: Installation
Installation Electrical Terminals Low voltages Mains voltages max. 24 VAC / DC 230 VAC 50 - 60 Hz Terminal: Connection for: Terminal: Connection for: Outdoor sensor Pump Outdoor sensor (GND) Pump Flow temperature sensor Mains phase conductor Flow temperature sensor (GND) Mains phase conductor Room sensor (RC21) Neutral Mixer... -
Page 9: Additional Information
Additional Information External relay at signal output V(X) (0-10V / PWM) Using an external relay (art. no. 77502), a 0-10V/PWM output V(1) can be used to get a switching power of 230 VAC (I) or a potential- free changeover contact (II). The external relay is activated via the sig- nal output (0V = "off"... -
Page 10: Electrical Connection
Electrical Connection Before working on the unit, switch off the power supply and secure it against being switched on again! Check that there is no power flowing! Electrical connections may only be made by a specialist and in compliance with the applicable regulations. The unit may not be put into operation if there is visible damage to the housing, e.g. -
Page 11: Caleon Room Controller
°CALEON Room Controller °CALEON is an optional accessory and is normally not included in the scope of supply. Accessories Each °CALEON comes with an accessory bag that contains everything (except the CAN cable) needed to connect to an HCC. The fol- lowing components are used for the electrical connection: 1. - Page 12 The 24V power supply of the MHCC is designed for a load of up to 2W. This can supply 1 °CALEON room controller. For loads > 2W, an external power supply must be used. Configuration First, the °CALEON must be set up directly on the room controller. The automatic start-up wizard (Overview > Operating Mode > Menu >...
- Page 13 Bedroom Kitchen Room 6 Bedroom 2 Living Room 7 Bedroom 3 Office Room 8 Children Office 2 Room 9 Children 2 Room 1 Room 10 7.5.1. Room controller This value is used to appoint the amount of influence the room temperature has on the reference flow temperature, as a percentage. For each degree deviation between room temperature and set point temperature, the percentage set here is added from the cal- culated set flow temperature to the set flow temperature or subtracted from it until the min.
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Page 14: Rc21 Room Thermostat With Remote Control
RC21 Room thermostat with remote control The RC21 room thermostat is an optional accessory and is normally not included in the scope of supply. The remote control with integrated thermostat RC21 provides you with easy to use temperature controlled adjustment of the temperature from within your living space. -
Page 15: Operation
Operation Display and Input The display‘s (1), extensive text and graphical mode, enables simple, almost self-explanatory, operation of the controller. The LED (2) lights up green when the primary pump is switched on (automatic mode). The LED (2) lights up red when operating mode ‚Off‘... -
Page 16: Commissioning Help
Commissioning help 1. Set language and time 2. Commissioning help / setup wizard a) select or b) skip. The setup wizard guides through the necessary basic settings in the correct order. Every parameter is explained on the display of the controller. Pressing the „esc“... -
Page 17: Measurement Values
1. Measurement values Serve to display the current measured temperatures. If ‚error‘ appears on the display instead of the measurement value, there may be a defective or incorrect temperature sensor. If the cables are too long or the sensors are not well-placed, small deviations in the measurement values may occur. -
Page 18: Periods
3. Periods Settings for time, date and operating times for the heating circuit. The associated temperature reference values are specified in Menu 5, ‚Settings‘. Time & Date Serve to set the current time and date. For time-dependent functions such as circulation and anti-legionella and the evaluation of system data, it is essential that the time is accurately set on the controller. -
Page 19: Settings
5. Settings The basic settings for the control function of the heating circuit are applied. Basic settings applied. By no means does the controller replace the safety appliances on site! Operating mode Auto: automatic/normal operation taking into account operating times (day, comfort increase, night reduction). Reference: fixed flow temperature independent of the outside temperature. -
Page 20: Day Correction
Heat request The MHCC can request a heat source (burner, heat pump, ...) if the heating circuit does not have enough energy (VL temperature). Ther- for either the signal output V1 is used or the request is transferred via the CAN bus to another controller in the CAN network. -
Page 21: Eco Mode (During Solar Charge)
Example: Calculated target VL heating circuit 43 ° C, measured VL at sensor S2 40 ° C. If the VL sensor exceeds the setpoint VL by 2K (preferece/actual -) for 1 minutes, the MHCC requests a heat source with 4.3V (cor- responds to 43 °... -
Page 22: Protective Functions
6. Protective Functions The 'Protective functions‘ can be used by specialists to activate and set various pro- tective functions. By no means does the controller replace the safety appliances on site! Seizing Protection If the anti-seizing protection is activated (daily, weekly, off), the controller switches the heat pump and the mixer on/off at 12:00 noon for 5 seconds to prevent seizing of the pump/valve after long periods of inactivity. -
Page 23: Special Functions
7. Special Functions Used to set basic items and expanded functions. The settings in this menu should only be changed by a specialist. Sensor Calibration Deviations in the temperature values displayed, for example. due to cables which are too long or sensors which are not positioned optimally can be compensated for manually here. -
Page 24: Room Controller
Room Controller Room Controller This value is used to appoint the amount of influence the room temperature has on the reference flow temperature, as a percentage. For each degree deviation between room temperature and set point temperature, the percentage set here is added from the calculated set flow temperature to the set flow temperature or subtracted from it until the min. -
Page 25: Ethernet
Ethernet The data logger‘s Ethernet connection settings can be set using this menu. MAC Address Displays the individual MAC address of the data logger. Auto-Configuration (DHCP) If auto-configuration is activated, the data logger requests IP addresses and network parameters from a DHCP server that assigns an IP address, subnet mask, gateway IP and DNS server IP. -
Page 26: Language
10. Language To select the menu language. During initial commissioning and longer power inter- ruptions, the query is made automatically. The choice of languages may differ depending on the model. Language selection is not available for every model. Malfunctions/Maintenance Replacing the Fuse Repairs and maintenance may only be performed by a specialist. -
Page 27: Tips
Tips The service values include not only current measurement values and operating states, but also all of the settings for the con- troller. Write the service values down just once after commissioning has been successfully completed. In the event of uncertainty as to the control response or malfunctions the service values are a proven and successful method for remote diagnosis. -
Page 28: Final Declaration
Although these instruction have been created with the greatest possible care, the possibility of incorrect or incomplete information cannot be excluded. Subject as a basic principle to errors and technical changes. Date and time of installation: Name of installation company: Space for notes: Your specialist dealer: Controller TT-MHCC 20.05.2020 www.strasshofer.de...
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